MBSD vs SPMB
Northern Trust Disciplined Duration MBS ETF against State Street SPDR Portfolio Mortgage Backed Bond Index ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
1%
43 shared positions
Fee gap
16 bp
SPMB is cheaper
1-year return gap
0.2 pts
MBSD is ahead
Larger fund
SPMB
$7.0B
Side by side
| MBSD | SPMB | |
|---|---|---|
| Fund | Northern Trust Disciplined Duration MBS ETF | State Street SPDR Portfolio Mortgage Backed Bond Index ETF |
| Issuer | Northern Trust FlexShares | State Street SPDR |
| Category | Mortgage & Securitized | Mortgage & Securitized |
| Expense ratio | 0.20% | 0.04% |
| Assets | $89M | $7.0B |
| Average daily dollar volume | $263K | $53M |
| Listed | Sep 3, 2014 | Jan 15, 2009 |
| FrenzyCap score | 52 | 96 |
| 1-month return | +1.8% | +2.7% |
| 3-month return | −0.8% | −1.0% |
| Year to date | −2.7% | −3.1% |
| 1-year return | −2.9% | −3.1% |
| 30-day volatility | 4.6% | 5.3% |
| Worst drawdown, 1 year | −6.2% | −8.0% |
| Trailing 12-month yield | 4.13% | 4.25% |
| Holdings | 484 | 2,777 |
| Top 10 weight | 16.9% | 7.6% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | −$4.1M thru Jul 2026 | +$196M thru Jun 2026 |
| 30-day implied volatility | — | 33.8% |
| Holdings as of | as of Jul 31, 2026SEC filing | as of Nov 5, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
15% of MBSD · 1% of SPMB| Holding | MBSD | SPMB |
|---|---|---|
| GNMA 2%, due Dec 20, 2051 | 0.94% | 0.19% |
| FNMA 6.5%, due Aug 1, 2054 | 0.21% | 0.17% |
| FNMA 1.5%, due Oct 1, 2051 | 0.97% | 0.17% |
| GNMA 2.5%, due Oct 20, 2050 | 0.88% | 0.12% |
| GNMA 2%, due Feb 20, 2052 | 0.96% | 0.10% |
| GNMA 5.5%, due Dec 20, 2052 | 0.46% | 0.10% |
| GNMA 3%, due Nov 20, 2049 | 1.18% | 0.07% |
| FNMA 1.5%, due Feb 1, 2051 | 0.50% | 0.05% |
| GNMA 3%, due Mar 20, 2052 | 1.19% | 0.04% |
| FHLMC Pool 1.5%, due May 1, 2041 | 0.43% | 0.04% |
| GNMA 6%, due Dec 20, 2052 | 0.29% | 0.03% |
| GNMA 2.5%, due Mar 20, 2052 | 0.87% | 0.03% |
| FNMA 6.5%, due Nov 1, 2053 | 0.47% | 0.03% |
| FHLMC Pool 1.5%, due Feb 1, 2036 | 0.47% | 0.02% |
| GNMA 6.5%, due Aug 20, 2054 | 0.22% | 0.02% |
| GNMA 4%, due Feb 20, 2048 | 0.70% | 0.02% |
| FHLMC Pool 2.5%, due Apr 1, 2037 | 0.56% | 0.02% |
| GNMA 3.5%, due Oct 20, 2047 | 0.29% | 0.02% |
| FNMA 1.5%, due Jan 1, 2036 | 0.66% | 0.02% |
| FHLMC Pool 2%, due Jun 1, 2051 | 0.62% | 0.01% |
| FHLMC Pool 2%, due Feb 1, 2032 | 0.05% | 0.01% |
| FNMA 2.5%, due Jun 1, 2029 | 0.02% | 0.01% |
| FHLMC Pool 2.5%, due Jun 1, 2041 | 0.35% | 0.00% |
| FHLMC Pool 4%, due Oct 1, 2045 | 0.03% | 0.00% |
| FHLMC 6%, due Jul 1, 2040 | 0.07% | 0.00% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · MBSD holdings · SPMB holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.